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Northwest Africa 13067 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13067 This is an OFFICIAL meteorite name. Abbreviation: NWA 13067 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 31 Jan 2020 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 13067 (NWA 13067) (Northwest Africa) Purchased: 2019 Classification: HED achondrite (Eucrite) History: The meteorite was purchased from a meteorite dealer in Morocco. Physical characteristics: Greyish rock with some fusion crust. Petrography: The meteorite is a fragmental breccia composed of up to 3 mm sized basaltic and sparse up to 2 mm sized black impact melt clasts set into a clastic matrix. Mineral phases are predominantly up to 300 µm sized pyroxene and up to 700 µm sized calcic plagioclase grains. Pyroxene is compositionally zoned indicating a low degree of thermal metamorphism. Minor phases include silica, chromite, and troilite. No metallic iron has been detected. Geochemistry: low-Ca pyroxene: Fs37.5±7.9Wo7.6±1.2 (Fs31.7-53.1Wo6.4-9.6, FeO/MnO=24-29, n=15); Ca-pyroxene: Fs48.4±4.0Wo23.4±0.6 (Fs45.5-58.0Wo22.9-25.2, FeO/MnO=25-31, n=13); calcic plagioclase: An87.7±5.8 (An82.0-94.6, n=13) | ||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |